GAS & HEATING CERTIFICATE SOFTWARE
Professional certificates. Made easy. Made yours.
Gas and heating certificate software, with PDFs branded for your company. Save your company and engineer details once. Essential fills them in automatically on every new certificate.
Create your free account. No payment required.
See your business on the record.
Keep the calculation with the job.
Pipework, meter and pressure gauge.
Save and reopen with your free account.
Your company. Your engineers.
Choose the engineer on the job. Their saved details follow through to the certificate.
YOUR BUSINESS DETAILS · YOUR ENGINEER · YOUR RECORD
Natural gas + LPG + Unvented + Renewables
LESS REPEATED ADMIN BETWEEN JOBS
Company details entered once.
Ready for the next record.
Save your business details, choose the engineer and record the work. Essential carries the company information into the certificate, so you can concentrate on the visit details and readings.
- 01
Your business details on the document.
Add your trading name, business address, contact information and relevant registration details. New records use your company profile, rather than Essential’s details.
- 02
Room to grow your team.
Save your engineers and their licence details. Select the person carrying out the job and carry their information into the document. Up to 2 engineers are included; each additional engineer costs £9.99/month.
- 03
Review the answers. Keep the record.
Record the appliances, readings and findings, then review the answers. Confirm your answers, record the optional customer acknowledgement, then complete the engineer signature to create a numbered record and its A4 PDF. Keep related warning notices linked.
Your certificate numbers, in order.
Your certificate prefix and numbering carry across your company’s records.
Find the record behind the job.
Keep customers, saved documents and the original calculator snapshot in one workspace.
PDF reports and editable backups.
Keep editable backups of your records. Calculator PDF and report downloads are included in the Essential package.
YOUR TRADE. YOUR TOOLKIT.
Certificates for your company.
All in one package.
Explore 23 record types across natural gas, LPG, unvented hot water and renewable heating, with your company and engineer details built in.
Natural gas
10 record types- Landlord gas safety record
- Homeowner gas safety record
- Gas appliance service & repair
- Gas installation & commissioning
- Gas tightness test record
- Gas warning notice
- Gas visual inspection record
- Non-domestic gas work record
- Commercial catering gas record
- Gas access attempt record
Oil is deferred. These are original work records, not official scheme certificates. Use the applicable current standards and any required manufacturer or scheme documentation.
IGEM/UP/1B CALCULATOR
A dedicated home
for your IGEM/UP/1B
calculations.
Go straight to the standalone IGEM/UP/1B Calculator and calculate without an account. Create your free account to save your results and reopen them when you need them.
FREE ACCOUNT Save results. Reopen your work.
ESSENTIAL PLANPDFs and report downloads included in Essential from £24.99/month for up to 2 engineers.
A free account saves your results. View subscription and download access in Your account.
Independent Essential tool. Not affiliated with or endorsed by IGEM. Full licensed technical review is pending; the calculation supports a competent engineer and does not replace the full standard or required procedure.
ALL YOUR ESSENTIALS. ONE PACKAGE.
Your whole toolkit.
One clear price.
Natural gas, LPG, unvented and renewables, plus calculator PDF and report downloads. All four modules included in Essential for £24.99/month. Up to 2 engineers are included; each additional engineer costs £9.99/month.
£269.89 upfront for 12 months — 10% less than 12 monthly payments. The base package includes up to two engineers; each additional engineer is £9.99/month or £107.89 upfront per year. Introductory base prices until 31 December 2026. Subscribe before 1 January and keep your introductory base price for as long as your subscription stays active. From 1 January 2027, new base packages cost £31.24/month or £337.36 upfront for 12 months — a 25% increase, rounded to the nearest penny. Additional engineers remain £9.99/month or £107.89/year each.
Published pricing. Choosing a plan creates an account and saves your preference. Free accounts and saved preferences do not reserve a subscription price. Review subscription and payment availability in Your account.
THE DETAILS, UP FRONT
Good questions.
What is needed before creating a certificate?
Complete the questions, review and confirm every answer, then record the customer acknowledgement if available. The engineer must sign last before a certificate or PDF can be created. Use the current standards, stay within your competence and check all recorded details. Essential work records do not replace required manufacturer or scheme documentation.
Can I add more than one engineer?
Yes. Up to 2 engineers are included; each additional engineer costs £9.99/month. Save each engineer’s relevant licence details, then select the engineer for each job to include their information in the certificate. Account access and team invitations are managed separately by the company owner.
Is the tightness calculator a separate tool?
Yes. The IGEM/UP/1B Calculator has its own dedicated entry point. Your free email account lets you save calculation results and reopen them later. Essential is independent and is not an IGEM-endorsed product.
What is free, and what needs a subscription?
Calculations are open without an account. A free email account lets you save results and reopen them. Creating PDFs and downloading reports are included in the all-inclusive Essential package at £24.99/month; no separate calculator plan is needed. Up to 2 engineers are included; each additional engineer costs £9.99/month. £269.89 upfront for 12 months — 10% less than 12 monthly payments. The base package includes up to two engineers; each additional engineer is £9.99/month or £107.89 upfront per year. Introductory base prices until 31 December 2026. Subscribe before 1 January and keep your introductory base price for as long as your subscription stays active. From 1 January 2027, new base packages cost £31.24/month or £337.36 upfront for 12 months — a 25% increase, rounded to the nearest penny. Additional engineers remain £9.99/month or £107.89/year each. Subscriptions and payment availability are managed in Your account.
What happens after I choose a package?
You create your email account, save your plan preference, and follow the company setup steps. Add your business and engineer details so new certificates can use them automatically. Registration saves your preference only. Review and confirm any subscription separately in Your account.
Can I keep a copy of my work?
Your free calculator account keeps saved results available to reopen. Calculator PDFs and report downloads are included in the all-inclusive Essential subscription. Editable workspace backups are separate from report downloads. Existing browser-only records still need their original-browser backups before migration; creating an account does not automatically recover them.
PUT YOUR COMPANY DETAILS TO WORK
Make your paperwork
look the business.
Set up your company and engineers, then create your next record.
No payment required to register.